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Nothing to do with the G310,but i keep seeing references to the G310,being BMW's first under 500cc road bike(magazines etc)but i'm sure a mate of mine had a 450R?,back in the 70's,of course i could be wrong again & the 450R was actually over 500cc,anyone know?

Well,lets see,that's 37years old,i'm quite a bit more than double that age & there are quite a few of us oldies around,the ploiticians are moaning about us bankrupting the NHS,all the time:grin2:
But seriously some of the publications i've read this "fact" stated in,should know better,Research?.
I know it's not important but sometimes it's nice proving some of these smart a**e reporters wrong:grin2:

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You'd be surprised at the amount of times these "journalists" will report wrong information. Either one, they've read it somewhere else and they just re-state it, or two, they don't know better because they haven't seen anything recently and go based off of that instead of doing the appropriate research.

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And this is why forums are so great. We have a variety of riders to learn from or bounce ideas off of instead of just taking publications as fact. :grin2: That 1980 BMW R450 looks like it was one amazing cruiser for long cross country rides. But mad does that engine look heavy.

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Lol I think @SlickRick may have head a little lapse in thought probably based off of cm3 (cubic centimeter) being represented differently from cc (cubic centimeter) and thought a conversion was needed.

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Ah..Yes,
BMW produced many quarter liter singles from 1925 up to 1967... One model, the R2 for 1931 to 1936 depression years was a 200 but many 250cc bikes were made other years. I am not sure about WWII years. The 250cc displacement was 247 cc from the factory so that one could do a couple of clean up cylinder borings for replacing piston rings without exceeding the 250cc license limit. Annual license taxes were based on displacement.

The R27 would have been a superb machine if they had gear driven counterbalancers at that time. The rubber block engine mounts helped but it still had a pretty tedious vibration at speed compared to the wonderful twins.

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WillyR50S,
During wwII bmw made a lot of 750’s with a sidecar and machine gun mounted.
Even zundapp made a 750 with sidecar called the ‘green elephant’.
This zundapp was the base for the ELEPHANTENTREFF, a winter meeting for motorcyclist in the snow.
They started at the Nurburgring, but move towards Austria.
It is still a rally (TREFF) were a lot of, mostly sidecar riders, meet.

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There is no information on the internet about whether BMW made a single cylinder machine for the Wehrmacht. I suspect that all of their efforts were then tied up in supplying the twin R75 and making parts for the general military procurement initiative. At that time many companies were involved with making parts for other types of equipment based on their manufacturing capacity and manufacturing expertise. For example BMW might have been making aluminum castings for Opel truck radio mounts. The war initiative required that all companies join in in maximizing production.

The point of my earlier post yesterday was to show that the G310 was hardly BMW's first foray into making sub 500cc machines. A lot of motor journalists have not done their home work and they continue to spout the falsehood that the G310 is the first ever single cylinder sub 500 cc machine produced by the marque in their long manufacturing history since 1921.

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I learned to ride on a Harley 125 (DKW RT125 copy) and Hercules K100's (JBeK 100 in the US). Then graduated to a 1956 R50 that belonged to a friend. I never had enough money to buy one but that was such an amazing machine with the Earles fork front suspension that would soak up potholes with no competition in sight. Eventually gained employment at a BMW shop as a mechanic and still could not afford one as $1200 in 1965 was a small fortune to a young lad... Oh!, the opposed twin was so smooth. Much smoother than the R27 single... It brings back wonderful memories of the early 1960's. My forum name was inspired by those days.

Hi guys, 18' G310R owner here!
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Hello!
Recently acquired a G310R. I like to perform my own bike maintenance and was looking for suggestions for the beat lift available. Goals are to be able to lift the front and rear of the bike to perform any wheel and chain maintenance. I was thinking front and rear spoils with PitBull...

Got my recall letter this morning. The G310R in the UK is being recalled for a safety brake inspection. Apparently, there is a danger of brake calliper corrosion due to the UK winter road treatment (salt to you and me). I have my R booked in for its 2nd service this Friday afternoon so I phoned...